Have an 85 Custom Deluxe 10 Chev P/U with 305 that was rebuilt to 350 at 72K. Now has 105K
Mileage sucks, getting 10 or 11 mpg.
Would it help to replace the 4 barrel Edelbrock with a 2 barrel? Or should I rebuild the 4 barrel?
Also, get a pinging noise when going up slight inclines on freeway until I give more throttle. EGR Valve?
Rear end gearing is for towing trailer so I know that's part of problem, but when I first had the truck got better mileage than now.
++++++++++++++ Is that Edelbrock a holley rip-off? If so a Q-jet *might* help, Is the feedback carb history? An '85 should be a feedback. Hey wait, shouldn't a '85 be TBI?
Could be, could also be timing, lean mixture, or carbon build-up.
Have you tuned it up lately?
What Edelbrock carb is a Holley rip-off?
California only.
Not necessarily.
Not until 1987.
You'll get better mileage with a Quadrajet than a 2-barrel....you just have to keep your foor out of it.
Didnt know, thats why I asked. So its really a Q-jet? Sorry but I hate carbs, they're soooo 70s :)
That sucks.....
==== ==== Tue, Feb 17, 2004, 10:07pm (CST-2) From: Tacoma Chevy Owner
Have an 85 Custom Deluxe 10 Chev P/U with 305 that was rebuilt to 350 at
72K. Now has 105K Mileage sucks, getting 10 or 11 mpg.Would it help to replace the 4 barrel Edelbrock with a 2 barrel? Or should I rebuild the 4 barrel? Also, get a pinging noise when going up slight inclines on freeway until I give more throttle. EGR Valve?
Rear end gearing is for towing trailer so I know that's part of problem, but when I first had the truck got better mileage than now. ======= =======
What kind of transmission are you running?
MarshMonster ~:~
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